"How a famous engineer [Bidder] taught himself arithmetic": chap. VII
"Chapters XV-XVIII... summarize a course of unpublished lectures on the mathematical and physical exhibts in the Paris exhibition of 1900, delivered for the Г‰cole internationale de l'Exposition. Chapters I-IV, XX, XXIII...contain a reprint...of several articles written for [the Journal of education]"--Pref
Includes bibliographical references (p. 378-380) and index